NF C73-860/A52-1994 NFC73-860的1992修改件52

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【英文标准名称】:StandardPracticeforCalculatingSampleSizetoEstimate,WithSpecifiedPrecision,theAverageforaCharacteristicofaLotorProcess
【原文标准名称】:按规定的精度估算一批产品或一次加工过程特性曲线均值的样品尺寸计算用标准实施规程
【标准号】:ASTME122-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:E11.10
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:Empiricalknowledge;Erroranalysis;Maximumtolerableerror;Processcontrol;Samplingdataanalysis/statistics;Size/sizedistributionanalysis;Statisticalmethods;Calculatingtestvalues
【摘要】:Thispracticeisintendedforuseindeterminingthesamplesizerequiredtoestimate,withspecifiedprecision,ameasureofqualityofalotorprocess.Thepracticeapplieswhenqualityisexpressedaseitherthelotaverageforagivenproperty,orasthelotfractionnotconformingtoprescribedstandards.Thelevelofacharacteristicmayoftenbetakenasanindicationofthequalityofamaterial.Ifso,anestimateoftheaveragevalueofthatcharacteristicorofthefractionoftheobservedvaluesthatdonotconformtoaspecificationforthatcharacteristicbecomesameasureofqualitywithrespecttothatcharacteristic.Thispracticeisintendedforuseindeterminingthesamplesizerequiredtoestimate,withspecifiedprecision,suchameasureofthequalityofalotorprocesseitherasanaveragevalueorasafractionnotconformingtoaspecifiedvalue.1.1Thispracticecoverssimplemethodsforcalculatinghowmanyunitstoincludeinarandomsampleinordertoestimatewithaspecifiedprecision,ameasureofqualityforalltheunitsofalotofmaterial,orproducedbyaprocess.Thispracticewillclearlyindicatethesamplesizerequiredtoestimatetheaveragevalueofsomepropertyorthefractionofnonconformingitemsproducedbyaproductionprocessduringthetimeintervalcoveredbytherandomsample.Iftheprocessisnotinastateofstatisticalcontrol,theresultwillnothavepredictivevalueforimmediate(future)production.Thepracticetreatsthecommonsituationwherethesamplingunitscanbeconsideredtoexhibitasingle(overall)sourceofvariability;itdoesnottreatmulti-levelsourcesofvariability.
【中国标准分类号】:A41
【国际标准分类号】:03_120_30
【页数】:5P.;A4
【正文语种】:英语


【英文标准名称】:Rods,barsandforgingsoftitaniumalloys
【原文标准名称】:钛合金棒及锻件
【标准号】:JISH4657-1998
【标准状态】:作废
【国别】:日本
【发布日期】:1998-11-20
【实施或试行日期】:
【发布单位】:日本工业标准调查会(JISC)
【起草单位】:TechnicalCommitteeonNon-FerrousMetals
【标准类型】:()
【标准水平】:()
【中文主题词】:钛合金;棒材;有色金属合金;退火;锻件;材料(按形状分)
【英文主题词】:titaniumalloys;non-ferrousalloys;annealing;forgings;bars(materials);materialsbyform
【摘要】:
【中国标准分类号】:H64;J32
【国际标准分类号】:77_150_50
【页数】:12P;A4
【正文语种】:日语